Means for use in calking lead joints in iron pipes and mains.



C. TOON, SR.

MEANS FOR USE IN CAULKING LEAD JOINTS IN IRON PIPES AND MAINS.

APPLICATION FILED AUG.26, I913.

Patented Dec. 21, 1915.

I NVENTOR AYYORNW.

in readiness for jointing.

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CLIFFORD TOON, $3., OF CHRISTCHURCH, NEIV ZEALAND.

MEANS FOR USE IN CALKING LEAD JOINTSIN IRON PIPES AND MAINS.

Application filed August 26, 1913.

To all whom it may concern.

Be it known that I, CLIFFORD TooN, S12, a subject of the King of Great Britain, residing at Public Trust Building, Cathedral Square, Christchurch, New Zealand, have invented new and useful Improvements in Means for Use in Calking Lead Joints in Iron Pipes and Mains, of which the following is a specification.

This invention relates to means for use in calking the lead joints employed in con necting iron pipes used as mains for conveying gas, water, sewage and the like and refers more particularly to the calking of joints formed with sponge lead. The invention is also applicable for use in any case where a joint is to be made by ramming in metallic packing.

Hitherto the practice has been to perform the calking by hand for which purpose a suitable tool driven by a hammer has been applied successively at various points around the circumference until the joint has become sufficiently tight to prevent leakage. This method however entails a considerable expenditure of time and requires great care in order to produce a joint that will be tight and satisfactory, while owing to the necessity of providing room for the hammer and calking tool to be used upon the underside portion of the joint, a considerable amount of earth requires to be excavated at the point at which the operation occurs.

- It is the object of the present invention to provide means whereby the joint will be calked simultaneously at all points around the circumference of the pipe thus effecting a considerable saving of time while at the same time insuring regularity of the work. The invention moreover necessitates very little clearance in which to work beneath the pipe thus avoiding to a great extent the excavation beneath the ordinary level of the bottom of the trench.

In order that the nature of the invention may be fully understood, reference will now be made to the accompanying sheet of drawings in which Figure 1.- is an elevation showing the device in place and portions of two pipes Fig. 2. is a longitudinal section of Fig. 1 along the line AB. Fig. 3. is a cross section of Fig. 1 along the line C-D. Fig. 4.- shows in outline the two members of the tool hingeably connected together. Fig. 5. is an Specification of Letters Patent.

Patented Dec, 21, 1915.

Serial No. 786,645.

end view of the device as viewed from the operative end of the tool, and Fig. 6. is a other pipe 3 and then placing lead at either incast or sponge form so as to fill the annular space or interval 5 between the periphery of the end portion of the pipe 1 and the inner circumference of the socket 2, as clearly illustrated in Fig. 2.

The invention comprises a pair of semicircular shaped calking tools 6 which are adapted to be placed together around the pipe 1 so as to operate upon the adjacent end of thelead 43 at all points around the joint.

Forthe purpose of operating them simultaneously the said calking tools 6 are attached at their outer or reverse ends with a dolly or driver 7 which is slidable longitudinally upon the pipe 1. The said dolly 7 consists of a ring or member ofthe desired weight and adapted to encircle the pipe 1, such member being preferably formed in two halves adapted to be secured to gether to enable the device to be conveniently placed in position or removed from the pipe. This securing together of the two portions of the dolly may be effected in any convenient manner; as for instance, by means of. bolts 8 passing through lugs 9 formed upon the two half portions of the dolly, as shown in Figs. 1, 2, 3, and 5 or again the two portions may be connected at one side by means of a hinge 10, as shown in Fig. 4, any suitable means being employed to secure the two halves together at the opposite side.

According to the drawings, in order to enable them to be attached to the dolly 7, the tools 6 are each formed at their outer or reverse ends with an out-turned flange 11 adapted to abut with the side face of the dolly 7 in which position they are secured by means of bolts 12 passing through both the dolly 7 and flanges 6. In order to permit of slight adjustments of the total diameter of the tools 6 to accommodate the device to such variations as may occur in the diameter of the pipes,'the holes 13 in the fianges, through which thebolts 12 pass,

are somewhat slotted or elongated in a direction at right angles tothe direction of diametrical division of the tool (as shown in Figs. 2 and I It must be understood however that the invention is not to be limited to such method.

.7 of attaching the tool to the dolly as any which the blow acts, the operative end of the tool 6 may be toothed as indicated in Fig. 6,

or otherwise formed to attain this purpose.

In operating a tool of the latter description it will be necessary to turn the device occasionally upon the pipethrough a sufficient angle to enable the whole of the lead around the joint to be rammed to the same degree.

To permit of the dolly 7 being reciprocated upon the pipe 1 with a minimum of friction suchdolly may be provided with a plurality of inwardly radiatingrunners 14 adapted to slide upon the periphery of the pipe, such runners being mounted slidable in the radial direction in recesses 15 formed in the dolly and screws 16 being provided to .enable the position of the runners to be adjusted to'suitvarying diameters of pipes or to compensate for wear.

In'lieu of this construction however the runners 14 may be dispensed with or formed integral 'with the dolly or the same purpose may be eiiected by the employment of ordinary anti-friction rollers either adjustable or otherwise. p

In operation the devlce is grasped either by the dolly or by suitable handles 17 at-' tached thereon and caused to reciprocate upon the pipe 1 in such a manner as to cause the forward or operative end of the tool to deliver a succession of blows to the adjacent edge of the lead 4 around thejoint which process is continued until such joint has become sufiiciently compact to produce a tight and satisfactory joint.

I claim j 1. A device for packing pipe joints comprising anaxially split bandadapted to be fitted slidably upon a pipe, means for securing the meeting edges of the band together,-a weighted dolly of sectional construction adapted to. be fitted slidably upon a pipe and to bear against one end of the said band, means for securing the sections together, an annular flange provided upon the band and having radially elongated slots therein, connecting bolt members extending through the dolly sections and the "flange slots of the band, and means by which the dolly may be reciprocated. v

'2. A device for packing pipe joints comprising a band adapted to be fitted slidab'ly upon a pipe, an annular weighted dolly adapted to be fitted slidably upona pipe and to bear against one end of thesaid band,

means for securing the dolly to the band,

means by which the dolly may be reciprocated, a. plurality'oi' relatively spaced'runners mounted movably within the dolly for engagement with a pipe extending therethrough, and means connecting the runners with the dolly for adjusting the former radi ally therein. I

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' CLIFFORDTOON, SENR. l Witnesses CYRIL CARLYN CooKE,

SIDNEY JAMES TRELEAVEN.

Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

; Washington, D. c. V v e 

